U.S. patent number 6,986,443 [Application Number 10/835,427] was granted by the patent office on 2006-01-17 for dosing and/or dispensing system.
Invention is credited to Rodney Laible.
United States Patent |
6,986,443 |
Laible |
January 17, 2006 |
Dosing and/or dispensing system
Abstract
A dosing and/or dispensing system for use with a liquid
container such as a bottle or the like for dosing and/or dispensing
liquid contents from the bottle. Various different dosing and/or
dispensing embodiments are disclosed which enable the liquid to be
dosed or dispensed by gravity from the container.
Inventors: |
Laible; Rodney (Bennington,
NE) |
Family
ID: |
45804238 |
Appl.
No.: |
10/835,427 |
Filed: |
April 29, 2004 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20040206786 A1 |
Oct 21, 2004 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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10736962 |
Dec 17, 2003 |
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10685549 |
Oct 15, 2003 |
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10372375 |
Feb 22, 2003 |
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10074469 |
Feb 12, 2002 |
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Current U.S.
Class: |
222/181.1;
222/189.09; 222/481.5; 222/518 |
Current CPC
Class: |
B67D
7/0294 (20130101) |
Current International
Class: |
B67D
5/06 (20060101) |
Field of
Search: |
;222/181.1,189.09,185.1,481.5,518 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Kaufman; Joseph A.
Attorney, Agent or Firm: Thomte, Mazour & Neibergall
Thomte; Dennis L.
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation-in-part application of Petitioner's earlier
application Ser. No. 10/736,962 filed Dec. 17, 2003, entitled A
DOSING AND/OR DISPENSING SYSTEM which is a continuation-in-part
application of Petitioner's earlier application Ser. No. 10/685,549
filed Oct. 15, 2003, entitled A DISPENSING SYSTEM which is a
continuation-in-part application of Petitioner's earlier
application Ser. No. 10/372,375 filed Feb. 22, 2003, entitled
CLOSED LOOP DISPENSING SYSTEM, which is a continuation-in-part
application of Petitioner's earlier application Ser. No. 10/074,469
filed Feb. 12, 2002 now abandoned, entitled CLOSED LOOP DISPENSING
SYSTEM WITH METERING ORIFICE.
Claims
I claim:
1. In combination: an inverted liquid container having upper and
lower ends; said lower end of said container having a hollow throat
extending downwardly therefrom; a hollow cup having upper and lower
ends; a connector on the upper end of said cup which is selectively
secured to the throat of the container; said upper end of said cup
having a central opening formed therein which is in communication
with said connector; said upper end of said cup having at least one
vent opening formed therein which is in communication with ambient
air; a valve normally closing said vent opening; said cup having a
valve opening formed therein above its lower end; said cup having a
central opening formed in its said lower end below said valve
opening; a lift valve, having upper and lower ends, vertically
movably mounted on said lower end of said cup which is movable
between upper and lower positions; said lift valve having a valve
stem which is slidably received by said central opening in said
lower end of said cup; said valve stem having a closed upper end
and an open lower end; said valve stem having at least one liquid
passageway formed therein below its said closed upper end; a valve
on said valve stem of said lift valve which closes said valve
opening when said lift valve is in its said lower position; said
liquid passageway being positioned below said valve opening when
said lift valve is in its said lower position; said liquid
passageway being positioned above said valve opening when said lift
valve is in its said upper position; a vent actuator operatively
secured to said lift valve above said valve opening for movement
therewith; said vent actuator being movable between upper and lower
positions; said valve means closing said vent opening when said
vent actuator is in its said lower position; said valve means
causing said vent opening to be open when said vent actuator is in
its said upper position.
2. The combination of claim 1 wherein a spring urges said lift
valve towards its said lower position.
3. The combination of claim 1 wherein said vent actuator includes a
first hollow tubular portion which slidably embraces a second
tubular portion on said upper end of said lift valve.
4. The combination of claim 3 wherein said first tubular portion
has inner and outer surfaces and wherein said second tubular
portion has an outer surface; said inner surface of said first
tubular portion having a recess formed therein which defines upper
and lower shoulders; said outer surface of said second tubular
portion having an outwardly presented shoulder that is received by
said recess.
5. The combination of claim 4 wherein said shoulders permit a
predetermined amount of upward movement of said lift valve with
respect to said vent actuator without said valve means moving out
of engagement with said vent opening.
6. In combination: an inverted liquid container having upper and
lower ends; said lower end of said container having a hollow throat
extending downwardly therefrom; a hollow cup having upper and lower
ends; said hollow cup being secured to said container and having an
opening formed in its upper end which communicates with the
interior of said container; said upper end of said cup having a
vent opening formed therein which is in communication with ambient
air; a normally closed valve positioned in said vent opening; said
cup having a valve opening formed therein above its lower end; said
cup having a central opening formed in its said lower end below
said valve opening; a lift valve, having upper and lower ends,
vertically movably mounted on said lower end of said cup which is
movable between upper and lower positions; said lift valve having a
valve stem which is slidably received by said central opening in
said lower end of said cup; said valve stem having a closed upper
end and an open lower end; said valve stem having a liquid
passageway formed therein below its said closed upper end; a valve
on said lift valve which closes said valve opening when said lift
valve is in its said lower position; said liquid passageway being
positioned below said valve opening when said lift valve is in its
said lower position and which is positioned above said valve
opening when said lift valve is in its said upper position; a vent
actuator operatively secured to said lift valve for movement
therewith above said valve opening; said vent actuator being
movable between upper and lower positions; said vent actuator
engaging said valve to open said valve when said vent actuator is
in its said upper position.
7. The combination of claim 6 wherein a spring urges said lift
valve towards its said lower position.
8. The combination of claim 6 wherein said vent actuator includes a
first hollow tubular portion which slidably embraces a second
tubular portion on said upper end of said lift valve.
9. The combination of claim 6 wherein said vent actuator also
closes said opening in said upper end thereof when said lift valve
is in its said upper position.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention disclosed in Petitioner's earlier application Ser.
No. 10/736,962 filed Dec. 17, 2003, relates to a dosing and/or
dispensing system. The invention disclosed in Petitioner's earlier
application Ser. No. 10/685,549 filed Oct. 14, 2003, relates to a
dispensing system, which may be either an open loop or closed loop
dispensing system, and more particularly to a dispensing system for
dispensing corrosive liquid chemicals or dangerous medical liquid
products which are typically drawn from the upper end of a
container, such as a bottle or the like, to a mixing machine or the
like. In that invention, the container is inverted with the liquid
product gravity flowing from the lower end thereof. Further, the
dispensing system of that invention provides a means for venting
the container during shipment or storage in those situations where
the liquid within the container requires venting. In the dosing
and/or dispensing system of application Ser. No. 10/736,962 filed
Dec. 17, 2003, three dosing and/or dispensing embodiments are
disclosed which are ideally suited for use with portions of the
invention of Ser. No. 10/685,549 filed Oct. 14, 2003. In
application Ser. No. 10/777,916 filed Feb. 12, 2004, other dosing
and/or dispensing embodiments are disclosed which are ideally
suited for use with portions of the invention of Ser. No.
10/685,549 filed Oct. 14, 2003. In the instant invention, a
modified version of the dosing and/or dispensing system is
described.
2. Description of the Related Art
Corrosive liquid chemicals and dangerous medical liquid products
are typically contained in a container such as a bottle or the like
and are frequently dispensed therefrom to a mixing machine.
Normally, a cap is placed on the bottle with a dip tube extending
therefrom downwardly into the interior of the bottle for drawing
the liquid upwardly thereinto. Normally, a dispensing tube extends
from the cap to a mixing machine or some other piece of equipment
which creates suction in the dispensing tube to draw the liquid
from the interior of the bottle. In some prior art devices, when
the suction or vacuum is removed from the dispensing tube, backflow
may occur. Further, when the cap is removed from the bottle,
backflow from the dispensing tube may also occur. Additionally,
when the cap is removed from the bottle, liquid residue in the
bottle may spill therefrom. Additionally, the conventional prior
art systems normally do not prevent the re-use of the bottle which
is prohibited in some cases. Yet another disadvantage of the prior
art is that a reliable and efficient venting means for the bottle
is not normally provided for relieving vacuum pressure from within
the bottle. The system of co-pending application Ser. No.
10/372,375 solved the problems associated with the prior art
devices or systems.
While the system of co-pending application Ser. No. 10/372,375
works extremely well when the container is in its normal upright
condition, the system may not perfectly function when the container
of the co-pending application is inverted. When the container or
bottle of co-pending application Ser. No. 10/372,375 is inverted,
the liquid in the container is drawn or discharged from the normal
upper end of the container but which is the lower end of the
container in the inverted position. In such a position, the venting
membrane, which would normally permit ambient air to replace the
liquid in the container as the liquid is discharged from the
container, may become "clogged" due to the liquid coming into
contact therewith and crystallizing thereon. If air is not
permitted to enter the container as the liquid is drawn therefrom,
a partial vacuum is created in the upper end of the inverted
container which will interfere with the discharge of the liquid
therefrom.
The system of co-pending application Ser. No. 10/372,375 solved the
problems of the prior art and represented an improvement in the
invention of co-pending application Ser. No. 10/074,469. The
invention of application Ser. No. 10/685,549 filed Oct. 14, 2003,
represents an improvement over the invention described in
co-pending application Ser. No. 10/372,375. The invention disclosed
in application Ser. No. 10/736,962 filed Dec. 17, 2003, represented
an improvement over the invention disclosed in the co-pending
application Ser. No. 10/685,549 filed Oct. 14, 2003.
The system of application Ser. No. 10/777,916 discloses other
embodiments of the dosing and/or dispensing system of the
application Ser. No. 10/736,962 filed Dec. 17, 2003. The instant
invention does not require an insert for the container.
SUMMARY OF THE INVENTION
This invention relates to a dosing and/or dispensing system for use
with a container, such as a bottle or the like, having an outlet
opening formed in the upper end thereof. A cap is removably mounted
on the container for selectively closing the outlet opening during
shipment and storage. In use, the container is positioned in an
inverted position. The lower end of the inverted container has a
hollow throat extending downwardly therefrom which has interior and
exterior surfaces. The upper end of a dosing and/or dispensing cup
has a connector which is secured to the throat of the container
such as by a thread connection, a snap-on connection or a snap-in
connection. The upper end of the cup has a central opening formed
therein below the connector of the cup which is in fluid
communication with the interior of the throat of the container. The
upper end of the cup, outwardly of the connector, has at least one
vent opening formed therein which is in communication with ambient
air. A normally closed poppet valve is positioned in the vent
opening and has its lower end positioned within the cup. The hollow
cup has a valve seat formed therein above its lower end and has a
central opening in its lower end below the valve seat. A lift
valve, having upper and lower ends, is vertically movably mounted
on the lower end of the cup and is movable between upper and lower
positions. The lift valve is provided with a valve stem which is
slidably received by the central opening in the lower end of the
cup. The valve stem has a closed upper end and a lower end. The
valve stem has a liquid passageway formed therein below its closed
upper end and has a valve on its upper end which closes the valve
seat when the lift valve is in its lower position. The liquid
passageway is positioned below the valve seat when the lift valve
is in its lower position and which is positioned above the valve
seat when the lift valve is in its upper position. A vent actuator,
movable between upper and lower positions, is operatively secured
to the upper end of the valve for movement therewith and is
positioned above the valve seat. The vent actuator includes a flat
plate at its upper end which is adapted to engage the lower end of
the poppet valve, to open the same, when the lift valve is in its
upper position. The flat plate also seals the opening in the upper
end of the cup when the lift valve is in its upper position.
When the lift valve is moved to its upper position, liquid in the
cup flows through the liquid passageway in the valve stem and
downwardly through the valve stem and into a suitable container,
bottle, etc. When the lift valve moves towards its upper position,
the vent actuator is moved toward its upper position so that the
flat plate opens the poppet valve to permit ambient air to enter
the interior of the cup and move upwardly into the inverted liquid
container. When the lift valve reaches its upper position, the flat
plate seals the opening in the upper end of the cup to prevent
liquid passing from the container into the cup. When the lift valve
is returned to its lower position, the valve closes the valve seat
and the poppet valve closes the vent opening. The adapter may be
mounted in a fixture if desired.
It is therefore a principal object of the invention to provide an
improved dosing and/or dispensing system for corrosive or dangerous
liquids contained in a container such as a bottle or the like, when
the container is positioned in an inverted condition.
Still another object of the invention is to provide an improved
dosing and/or dispensing system of the type described which permits
sufficient ambient air to enter the interior of the container to
replace the liquid being dispensed therefrom so that a vapor lock
is prevented.
Still another object of the invention is to provide a dosing and/or
dispensing system which is safe and convenient to use.
Yet another object of the invention is to provide dosing and/or
dispensing systems representing an improvement in the prior
art.
Yet another object of the invention is to provide a dosing and/or
dispensing system which is reliable in use.
Still another object of the invention is to provide a dosing and/or
dispensing system which eliminates the need for an insert
positioned within the throat of the container.
Yet another object of the invention is to provide a dosing and/or
dispensing system which may be placed in a bracket or simply
attached to the container.
These and other objects will be obvious to those skilled in the
art.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 22 illustrate the embodiments of application Ser. No.
10/736,962 filed Feb. 12, 2004, wherein:
FIG. 1 is a perspective view of a container in an inverted position
so as to dispense liquids;
FIG. 2 is a perspective view of a throat plug assembly illustrating
the throat plug in the position when the container is inverted;
FIG. 3 is a perspective view of the throat plug assembly with the
throat plug assembly being illustrated in the position when the
container is in its upright condition;
FIG. 4 is an exploded perspective view of the throat plug assembly
of FIG. 2;
FIG. 5 is a partial vertical sectional view of the container in an
upright condition illustrating the manner in which the throat plug
assembly and cap permit venting of vapor pressure within the
container;
FIG. 6 is a partial exploded perspective view of the container and
cap in an upright condition;
FIG. 7 is an exploded perspective view of one means of mounting the
inverted container at a dispensing location;
FIG. 8 is an exploded perspective view illustrating an inverted
container and its relationship to the structure of FIG. 7;
FIG. 9 is a vertical sectional view of the apparatus of FIG. 8;
FIG. 10 is a view similar to FIG. 9 except that the container has
been mounted on the receptacle at the dispensing location;
FIG. 11 is a perspective view illustrating a lever operated,
gravity flow control assembly for use with the reservoir of FIG.
7;
FIG. 12 is a vertical sectional view illustrating the assembly of
FIG. 11 mounted on the reservoir of FIG. 7;
FIG. 13 is a perspective view of a manual dosing dispenser mounted
on a reservoir;
FIG. 14 is a vertical sectional view of the dispenser of FIG.
13;
FIG. 15 is a perspective view of another dosing dispenser;
FIG. 16 is a vertical sectional view of the dispenser of FIG.
15;
FIG. 17 is a perspective view illustrating the embodiment of this
invention and its relationship to a liquid container;
FIG. 18 is a perspective view illustrating the embodiment of this
invention in its operative position;
FIG. 19 is a sectional perspective view of the embodiment of FIG.
18;
FIG. 20 is a sectional view of the embodiment of FIG. 18 in
combination with the throat assembly of FIG. 9;
FIG. 21 is a sectional view similar to FIG. 20 except that the lift
valve is in its upper (open) position;
FIG. 22 is a sectional view of a modified venting arrangement;
FIG. 23 is a perspective view of the system of this
application;
FIG. 24 is a vertical sectional view of the system of FIG. 23;
FIG. 25 is a perspective sectional view of the system of FIG. 23;
and
FIG. 26 is a sectional view similar to FIG. 24 except that the
system is shown in its dosing and/or dispensing position.
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 10 illustrate the invention of co-pending application Ser.
No. 10/685,549 filed Oct. 14, 2003. FIGS. 11 16 illustrate the
invention of co-pending application Ser. No. 10/736,962 filed Dec.
17, 2003. The following description with respect to the embodiments
of FIGS. 1 22 is found in co-pending application Ser. No.
10/777,916 filed Feb. 12, 2004, and is repeated herein to complete
the description of the instant claimed invention. FIGS. 23 26
illustrate the embodiment of the instant invention.
In FIGS. 1 10, the numeral 10 refers to a conventional container
such as a bottle or the like which is used for transporting,
storing and dispensing liquids therefrom. FIG. 1 illustrates the
container 10 in an inverted dispensing position. Container 10
includes a hollow throat portion 12 extending downwardly therefrom
and which has external threads 14 mounted thereon.
The numeral 16 refers to a throat plug assembly which will be
described as it is positioned when the container 10 is in the
inverted position. The throat plug assembly 16 is inserted into the
hollow throat portion 12 of the container 10 while the container 10
is in its upright position. For purposes of description, throat
plug assembly 16 will be described as including an upper end 18 and
a lower end 20. The lower end 20 of the throat plug assembly 16
includes a hollow cylindrical plug member 22 having an open upper
end 24, an open lower end 26, and a cylindrical wall portion 28
extending therebetween. A disk-like tube support 30 is detachably
mounted on the upper end of the cylindrical wall portion 28,
preferably by means of a snap-fit connection. Tube support 30
includes a tube 32 having a lower end portion 34 and an upper end
portion 36. As seen in the drawings, lower end portion 34 extends
downwardly from tube support 30 and upper end portion 36 extends
upwardly from tube support 30. In some cases, upper end portion 36
will not be needed. In some cases, a flexible tube (not shown) will
be secured to the upper end of upper tube portion 36 so as to
extend upwardly into the container 10, if so required. As seen in
FIG. 2, tube support 30 has a plurality of spaced-apart passageways
38 formed therein.
The lower end of the plug member 22 defines a centrally located
opening which defines a valve seat 40. The lower end of plug member
22 also has an outwardly extending lip portion 42 which is designed
to engage the upper end of the container 10, as seen in FIG. 5, to
limit the downward movement of the throat plug assembly 16 with
respect to container 10 when the throat plug assembly 16 is
inserted downwardly into the container 10 while the container is in
its upright position (FIG. 5).
The numeral 44 refers generally to a valve means which is movably
positioned within the plug member 22 and which includes a normally
closed valve 46 and a hollow valve stem 48 extending upwardly
therefrom. Valve stem 48 includes one or more passageways 50
extending therethrough. Valve 46 includes a tapered portion 52 at
its lower end which terminates in a lower end portion 54. In those
cases where the container contains liquids requiring venting during
storage or shipment, the lower end portion 54 will protrude
slightly downwardly from the lower end of plug member 22, as
illustrated in FIG. 9. Valve stem 48 slidably receives the lower
end of lower end portion 34 of tube 32, as illustrated in FIG. 9.
Spring 56 embraces valve stem 48 and lower end portion 34 to
yieldably urge valve 46 to its lower closed position.
FIGS. 7 9 illustrate portions of a dispensing station which is
referred to generally by the reference numeral 58. Dispensing
station 58 may be located within a cabinet or simply upon a
horizontally disposed board or shelf 60 having an opening 62 formed
therein. Included at the dispensing station 58 is an upper fixture
64 which includes a flange 66 having screw or bolt openings 68
formed therein. The fixture 64 includes an upwardly extending
internally threaded stub 70. The interior of pipe stub 70 is
provided with a plurality of longitudinally extending grooves or
passageways formed therein. At the lower inner end of stub 70 are a
plurality of support arms 74 which extend across the opening 76 and
which have an actuator rod 78 secured thereto and extending
upwardly therefrom.
A lower fixture 80 is positioned below the shelf and within the
shelf 60, as illustrated in FIGS. 7 and 9. Screws 82 secure the
fixtures 64 and 80 together, as seen in FIG. 7. Preferably, the
lower end of fixture 80 includes an externally threaded throat
portion 84 for dispensing liquid therethrough to an on-off valve 86
or other dispensing or metering device.
When the container 10 is being used to store, transport or dispense
liquids which require venting during the shipment or storage
thereof, the container 10 will include a vented cap 88 having a
vent opening 90 formed therein, the lower end of which is closed by
a membrane 92 which permits air to pass therethrough but does not
pass liquid to pass therethrough. When the cap 88 is screwed onto
the container 10, the membrane 92 will engage the end 54 of valve
46 to slightly open valve 46, as illustrated in FIG. 5, to permit
air to be vented from the bottle while preventing liquid from being
discharged from the bottle. When valve 46 has been slightly
unseated, as illustrated in FIG. 5, vapor pressure within the
container 10 may pass through the passageways or openings 94 formed
in cylindrical wall member 28 and thence through the opening
between the tapered surface 52 of valve 46 and the valve seat 52
and thence through the membrane 92 outwardly through the opening
90. When the throat plug assembly of this invention is not going to
be used in situations where it is necessary to vent vapor pressure
from the container during shipment or storage, there is no need for
the end portion 54 of tapered portion 52 to be included. In that
situation, the valve 46 will positively close the valve seat 40.
Regardless of whether the end portion 54 is utilized or not, when
the cap 88 is removed from the container 10, the valve 46 will
close the valve seat 52. The container 10 is then inverted with the
external threads 14 of the container 10 being threadably engaged
with the internal threads on the stub 70. As the container 10 is
threadably mounted into the fixture 64, the actuator rod 78 engages
the valve means 44 at 96 which will cause the valve 46 to unseat
from the valve seat 52. Although the fixture 64 is shown as
including internal threads to effect the connection between the
container and the fixture, a push-pull connection could also be
utilized. Such a connection is commonly referred to as a snap-in
connection.
When it is desired to dispense the liquid from the container 10
into a receptacle, tub, container, etc., the valve 86 is opened to
permit liquid to flow through the passageways 94, passageways 50,
and through the valve seat 52, through the fixture 64, through
fixture 80, and outwardly through the valve 86. Air is permitted to
enter the interior of the container 10 to prevent air locks therein
during the dispensing of liquids by permitting ambient air to pass
downwardly through the passageways 72 in stub 70, thence through
passageways 94, passageways 50, and upwardly through the passageway
36 and also through the tube 32 into the interior of the container.
Although it is preferred that all of the passageways 50, 94 and 38
be utilized, in some situations it may be only necessary to use the
passageways 38 or it may only be necessary to utilize the
passageways 94 or it may be only necessary to utilize the
passageways 50. If the liquid is very viscous, it may be
advantageous to insert a flexible tube onto the upper end of upper
end portion 36 so that air passing through the tube 32 will be able
to pass through the viscous liquid to the upper end of the
container.
Thus the dispensing system of FIGS. 1 10 may be utilized to vent
containers or it may be used where venting is not required. The
system of FIGS. 1 10 is extremely economical and provides for a
continuous gravity flow due to the fact that ambient air can enter
the interior of the container to replace the liquid being dispensed
therefrom. The dispensing system of FIGS. 1 10 eliminates any
possibility of a vapor lock and provides a positive shut-off.
FIGS. 11 and 12 illustrate a lever operated, gravity flow control
assembly 100 which may be mounted on the reservoir 80 of FIGS. 1
10. Assembly 100 includes a hollow, cup-shaped housing 102
including an internally threaded upper end 104 which is threadably
secured to the lower end of the reservoir 80. Housing 102 includes
a cylindrical wall 106 which has an arcuate cam track 108 formed
therein which has a lower end 110 and an upper end 112. Housing 102
also includes a bottom wall 114 which has a central opening 116
formed therein.
The numeral 118 refers to a valve actuator assembly which is
selectively vertically and rotatably mounted in housing 102 and
which extends upwardly through reservoir 80. Assembly 118 includes
a disc-shaped member 120 which movably sealably engages the inside
surface of wall 106. A hollow tube 122 extends upwardly from member
120 and has one or more openings 124 formed in the wall surface
thereof. The inner lower end of tube 122 is in fluid communication
with tube 126 which extends downwardly from member 120. Normally, a
bottle or the like will be secured to tube 126 to facilitate the
flow of liquid from the container into the bottle or the like.
However, the tube 126 itself may be used to transfer the fluid into
any suitable receptacle. Actuator stem 128 extends upwardly from
the upper end of tube 122 through reservoir 80 for selective
engagement with the valve 46 to open the same. Lever 130 is secured
to the member 120 and extends outwardly through the cam track 108.
Preferably, the outer end of the lever 130 has a knob 132 mounted
thereon.
When lever 130 is at the lower end 110 of the cam track 108, the
valve 46 is in its fully closed position (FIG. 12). To open valve
46, the lever 130 is moved upwardly along the cam track 108 which
causes the actuator stem 128 to move upwardly into engagement with
the valve 46 to move the same upwardly to open the same. The lever
130 is selectively rotated to achieve the desired flow rate. When
the lever 130 is at the lower end 110 of the cam track 108, the
container may be removed from the fixture to replace the same since
the valve 46 is in its normally closed position of FIG. 12. The
container may be screwed onto the fixture, snapped onto the
fixture, or lever locked onto the fixture as desired.
FIGS. 13 14 illustrate an embodiment wherein structure is mounted
on the reservoir 80' to enable the apparatus to function as a
manual dosing dispenser. In the embodiment of FIGS. 13 and 14, the
reservoir 80' will have a predetermined volume such as one ounce,
two ounces, etc. The manual dosing structure is designated by the
reference numeral 200. Structure 200 includes an elongated valve
actuator 202 which is selectively vertically movable within an
opening 204 formed in the bottom of the reservoir. Actuator 202
includes a lower tubular portion 206 which is vertically movably
received by the opening 204 and which has a laterally extending
disc, flange, fingers, etc. referred to generally by the reference
numeral 208. Tubular portion 206 is hollow so as to define a
passageway 210 extending therethrough. Spring 212 embraces tubular
portion 206 between the bottom of reservoir 80' and disc 208 to
normally maintain tubular portion 206 in its lower "closed"
position of FIG. 14. Tubular portion 206 is provided with one or
more openings 214 formed therein which are sealed by the bottom
wall of the reservoir 80' when the tubular member is in its lower
position (FIG. 14). Shoulder 216 is provided at the upper end of
tubular portion 206 to limit the downward movement of the valve
actuator 202.
Valve actuator 202 includes a valve member 218 at the upper end of
the tubular portion 220, as seen in FIG. 14. Rod 222 is provided at
the upper end of actuator 202 for engagement with the valve 46.
When the valve actuator 202 is in its lower position, as seen in
FIG. 14, the upper end of rod 222 is preferably in engagement with
valve 46, to open the same, to enable liquid in the container to
fill the dosing reservoir 80'. The liquid cannot drain from the
reservoir at this time due to the fact that the opening(s) 214 are
sealed.
Assuming that the reservoir 80' is full with the predetermined
volume of liquid and it is desired to dispense the same therefrom
into a bottle or the like, the open upper end of the bottle is
positioned so that the open lower end of tubular portion 206 is
received thereby. Upward movement of the member 208 causes valve
218 to seal or close the lower end of valve seat 40, thereby
preventing additional liquid from the inverted container from
passing downwardly into the reservoir 80'. At the same time, the
liquid in the reservoir 80' may flow therefrom through the
opening(s) 214 into and through passageway 210 and into the
bottle.
When the predetermined liquid dose has been discharged into the
receiving bottle, the member 208 is lowered until shoulder 216
engages the bottom of reservoir 80', which seals opening(s) 214. At
that time, liquid from the inverted container can then flow around
valve 46 into the reservoir for the next dispensing sequence.
Another dosing dispenser embodiment is illustrated in FIGS. 15 and
16 and includes a valve actuator assembly referred to generally by
the reference numeral 300. Assembly 300 includes a cup-shaped cap
302 which is screwed onto the threads 84 of the reservoir 80. Ring
block 304 is positioned within cap 302 and has a central opening
306 formed therein which registers with the opening 308 in cap 302.
Hollow tubular member 310 is vertically movably received by
openings 306 and 308 and has a shoulder or lift valve 312 provided
therein which limits the downward movement of tubular member 310
with respect to ring block 304. Tubular member 310 is provided with
one or more openings 314 formed therein which are positioned within
ring block 304 when the valve actuator is in its lower "closed"
position of FIG. 16. Spring 316 embraces tubular member 310 between
the bottom of reservoir 80 and a lift lever 318 secured to the
lower end of tubular member 310 to yieldably urge the actuator to
its lower position. Rod 320 extends upwardly from lift valve 312
and has its upper end positioned closely to the normally closed
valve 46 when in the "closed" position of FIG. 16.
When it is desired to fill a bottle or the like with the liquid
from the inverted container, the bottle is placed beneath the lift
lever 318 and then raised so that rod 320 raises and unseats valve
46 to enable liquid from the container to flow around valve 46,
into reservoir 80, through opening(s) 312 which are now exposed
above ring block 304, and downwardly through the passageway 322
into the bottle. The bottle is lowered and removed when the desired
liquid level in the bottle has been received. As the bottle is
lowered, the lift valve 312 seats upon ring block 304 to prevent
further liquid from passing through opening 306. Lowering of the
lift lever 318 also causes valve 46 to again close.
Although the invention described above is ideally suited for use
with a container mounted on a fixture, the invention thereof may be
associated with a container which is not mounted on a fixture but
which is portable so that the container may be carried from one
location to another for use at those locations.
Referring now to the dosing and/or dispensing system or assembly
illustrated in FIGS. 17 21, the numeral 400 will be utilized to
designate the same. Assembly 400 is also designed to be used with a
liquid container 10 having a throat plug assembly mounted therein
such as the throat plug assembly 16 illustrated in FIGS. 2 and
3.
Assembly 400 includes an adapter 402 which is mounted on the
container 10 through a threaded connection, a snap-in connection or
a snap-on connection. In the embodiment shown in FIGS. 17 21, the
adapter 402 is secured to the exterior threads of the container 10.
Adapter 402 includes a hollow internally threaded collar 404 which
extends upwardly from a disc-shaped base 406 which is provided with
openings 408 formed therein within collar 404 (FIG. 19). Post 410
extends upwardly from the base 406 within collar 404, as seen in
FIG. 19. As seen in FIG. 19, an annular ring 412 extends upwardly
from base 406 outwardly of collar 404 to define a space 414
therebetween. Base 406 is provided with a vent opening 416
outwardly of collar 404.
The numeral 418 designates a hollow cup having its upper end
secured to base 406 by any convenient means. Preferably, an O-ring
seal 420 is positioned between the upper flanged end of cup 418 and
base 406, as seen in FIG. 19. The lower end 422 of cup 418 defines
a central opening 424 having a valve seat or valve opening 426 at
its upper end. The lower end 422 of cup 418 is also provided with
an annular cut-out area 428 which receives the upper end of a
spring 430.
A lift valve 432 is selectively movably mounted, between upper and
lower positions, on the lower end 422 of cup 418 and is yieldably
maintained in its lower position by the spring 430. Lift valve 432
includes a stem portion 434 having an open end 436 and a closed
upper end 438. One or more passageways 440 are formed in stem
portion 434 below the upper end thereof (FIG. 19). Valve actuator
442 is mounted on the upper end 438 of stem portion 434 and has a
valve 444 at its lower end which seats upon and closes valve seat
or opening 426 when lift valve 432 is in its lower position. As
seen in the drawings, valve actuator 442 includes a tubular portion
446 at its upper end having a shoulder 448 formed therein.
Vent actuator 450 is movably positioned within cup 418 and has a
hollow tubular portion 452 slidably mounted on tubular portion 446.
Tubular portion 452 is provided with an inwardly presented shoulder
454 which is adapted to engage shoulder 448 at times, as will be
described in greater detail hereinafter. Vent actuator 450 includes
a vent closure member 456 which is received by vent opening 446 to
close the same when lift valve 432 is in its lower position (FIG.
19). When lift valve 432 is in its upper (open) position of FIG.
21, vent closure member 456 is positioned above vent opening 416 so
that vent opening 416 is open.
Assuming that adapter 402 has been mounted on the liquid container
10, the container 10 may be inverted without fear that liquid will
escape from the container 10 by way of the assembly 400. Liquid
from the container 10 will fill the interior of the hollow cup 418
but cannot escape through either the valve seat 426 or the opening
416. Liquid cannot escape from the lower end of the assembly 400
since valve 444 is seated upon and closes valve seat 426 due to the
action of spring 430. Liquid cannot escape from vent opening 416
since vent closure member 456 is sealably engaged within opening
416, as seen in FIG. 19.
When it is desired to dispense or dose liquid from the assembly
400, a suitable receptacle such as a bottle or the like is
positioned below lift valve 432 so that the open lower end 436 of
lift valve 432 is in communication with the bottle. Upward movement
of the lift valve 432 against the action of spring 430 causes valve
444 to move upwardly from sealing engagement with valve seat 426
until such time as the openings 440 are positioned above the valve
seat 426 at which time the liquid will flow from the interior of
the cup 418 into the interior of the stem portion 434 by way of the
openings 440.
During the initial upward movement of the lift valve 432, the vent
actuator 450 remains in place until the upper end of valve 444
engages the lower end of tubular portion 52 with further upward
movement of the lift valve 432 causing the vent actuator 450 to be
moved upwardly to cause the vent closure member 456 to move out of
the opening 416 to enable ambient air to enter the interior of the
cup and then pass upwardly into the container to prevent a vapor
lock within the container 10.
When the desired amount of liquid has been dosed or dispensed from
the container, the bottle or the like receiving the liquid is moved
downwardly so that lift valve 432 may return to its normally lower
position. During the initial downward movement of the lift valve
432, the vent actuator 450 remains in position until the shoulder
448 on tubular portion 446 engages the shoulder 454 on tubular
portion 452 at which time the continued downward movement of the
lift valve 432 will cause vent actuator 450 to move downwardly so
that vent closure member 456 again closes vent opening 416.
Although the vent closure member 456 satisfactorily closes and
opens the vent opening 416, a normally closed, spring-loaded poppet
valve 500 may be installed in the opening 416', as illustrated in
FIG. 22. As seen in FIG. 22, the lower end of the poppet valve 500
is positioned below the base 406'. Sufficient upward movement of
the vent actuator 450' causes the poppet valve 500 to be moved
upwardly with respect to the vent opening 416' to open the same. As
seen, one or more of the poppet valves 500 may be utilized to
ensure proper venting. In FIG. 22, the numeral 502 refers to a
catch tray which extends outwardly from the upper end of collar 404
to catch any liquid spills.
FIGS. 23 26 illustrate the embodiment of the instant invention. The
system disclosed in FIGS. 24 26 is designed so as to eliminate the
need for a throat plug assembly being inserted into the throat of
the container. The numeral 600 will be utilized to refer to the
dosing and/or dispensing system or assembly illustrated in FIGS. 24
26. Assembly 600 is also designed to be used with a liquid
container 10, but the system of this invention eliminates the need
for a throat plug assembly to be mounted in the container, as
previously stated. Assembly 600 includes connector 602 which
extends upwardly from cup 604 and which is adapted to be secured to
the container 10 through a threaded connection, a snap-in
connection or a snap-on connection. In the embodiment shown in
FIGS. 24 26, the connector 602 is threadably secured to the
exterior threads of the container 10. Hollow cup 604 has its upper
end or top wall 606 integrally formed with the connector 602. Cup
604 also includes a tubular lower end portion 608 which slidably
receives stem portion 610 of lift valve 612. Lift valve 612 has an
open lower end 614 and a laterally extending lift arm or disk 616
provided thereon, as seen in FIG. 24. Spring 18 is positioned
between the upper end of lift arm 616 and the lower end of lower
end portion 608 to yieldably urge the lift valve to its lowermost
enclosed position. The upper end of stem portion 610 is provided
with one or more passageways 620 formed therein below the closed
upper end thereof, as also best seen in FIG. 24. Valve 622 is
mounted on the upper end of lift valve 612, as illustrated in FIG.
24, and is adapted to sealably engage the inside wall surface or
valve seat 624 to sealably close the lower end of cup 604 when the
lift valve 612 is in its lowermost position. Valve 622 includes an
upwardly extending tubular portion 626 having a radially extending
shoulder 628 extending outwardly therefrom. Tubular portion 628 is
slidably received within tubular portion 630 of vent actuator 632
(FIG. 24). The inside lower wall surface of tubular portion 630 is
provided with a recessed area 634 which receives the shoulder 628
of valve 622. Recess 634 defines an upper shoulder 636 and a lower
shoulder 638.
The upper end of tubular portion 630 of valve actuator 632 is
provided within an upper end portion, top wall or flat plate 640
having an opening 646 formed therein. One or more spring-loaded
poppet valves 642 are movably mounted in the upper end portion 606
of cup 604 which normally seal vent openings 644 in cup 604. As
seen, the lower ends of the poppet valves are positioned below the
top wall 606.
When the lift valve 612 is in its lowermost position of FIG. 24,
the poppet valves 642 close the vent openings 644. When lift valve
612 is moved towards its uppermost position, the shoulder 628
engages shoulder 636 to move actuator 630 upwardly which causes the
top wall 640 to engage the lower ends of the poppet valves 642 to
move the poppet valves 642 to their open position to permit ambient
air to enter the interior of the cup 604 and to travel into the
interior of the container 10 to prevent vapor locks. When lift
valve 612 is in its uppermost position (FIG. 26), the flat plate
640 seals the opening 646. When lift valve 612 is moved from its
uppermost position to its lowermost position, the shoulder 628
engages the shoulder 638 to pull the actuator 630 downwardly so
that the poppet valves 642 may then move to their closed
positions.
The assembly of this invention may be mounted on the container 10
without the use of a throat plug assembly as in the previous
embodiments disclosed herein. The container 10 is initially placed
in an upright condition and the assembly 600 is then connected to
the container. The container 10 is then inverted so that liquid
within the container may flow downwardly into the interior of the
cup 604. If the assembly is going to be used for dosing, the
interior compartment of the cup 604 will have a predetermined
volume so only that volume will be dispensed. Assuming that the
connector 602 has been mounted on the liquid container 10, the
container 10 may be inverted without fear that liquid will escape
from the container 10 by way of the assembly 600. Liquid from the
container 10 will fill the interior of the hollow cup 604 but
cannot escape through either the valve seat 624 or the openings
620. Liquid cannot escape from the lower end of the assembly 600
since valve 622 is seated upon and closes valve seat 624 due to the
action of the spring 618. Liquid cannot escape from vent openings
644 since the poppet valves 642 are in their closed position.
When it is desired to dispense or dose liquid from the assembly
600, a suitable receptacle such as a bottle or the like is
positioned below lift valve 612 so that lower open end 614 of lift
valve 612 is in communication with the bottle. Either downward
movement of the lift valve 612 against the action of the spring 618
with the lift arm 616 being in contact with the upper end of the
bottle or upward movement of the bottle with respect to the
assembly 600 will cause valve 622 to unseat from valve seat 624 and
will cause the opening 620 to be positioned above the lower end
portion 608 of cup 604 so that liquid within the cup 604 may flow
into the interior of the stem portion 610 of lift valve 612 by way
of the opening 620 and thence downwardly through the open end of
the lift valve.
The movement of the lift valve 612 towards its uppermost position
relative to the cup 604 causes the vent opening 644 to be opened so
that ambient air may enter the interior of the cup and the
container to prevent vapor locks. Further upward movement of the
lift valve causes flat plate 640 to seal the opening 649 to prevent
further liquid from the container 10 from passing into the cup 604
so that the assembly may be used as a dosing system. If the
operator simply wants to dispense liquid from the container into
the cup 604 and outwardly therefrom, the lift valve 612 is not
moved to its fully upper position so that the top wall 640 will not
seal the opening 646.
When the desired amount of liquid has been dosed and dispensed from
the container, the bottle or the like receiving the liquid is moved
downwardly so that the lift valve 612 may return to its normally
lower position. The assembly 600 may be conveniently secured to a
bracket mounted on a wall, golf cart, etc., or may be used in a
completely portable fashion by simply leaving the assembly 600 on
the container and moving the container from location to
location.
Thus it can be seen that the invention accomplishes at least all of
its stated objectives.
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